Resource efficiency analysis through planetary boundary-based life cycle assessment: a case study of sugarcane in Pakistan.

IF 4.9 3区环境科学与生态学 Q2 ENGINEERING, ENVIRONMENTAL International Journal of Life Cycle Assessment Pub Date : 2023-06-02 DOI:10.1007/s11367-023-02185-7

Hafiz Usman Ghani, Morten Ryberg, Anders Bjørn, Michael Zwicky Hauschild, Shabbir H Gheewala

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引用次数: 2

Abstract

Purpose: Extensive agriculture activities for crop production have led to increasing environmental impacts that threaten to exceed environmentally safe limits. The purpose of this study is to analyze resource efficiency of the agri-food industry, considering the case of sugarcane production in Pakistan.

Methods: A holistic approach has been applied by determining the relevant impact categories and Sustainable Development Goals (SDGs), and linking them with Planetary Boundary-based Life Cycle Assessment (PB-LCA). Both the spatially generic and spatially resolved approaches were considered with application of different sharing principles.

Results and discussion: Application of different sharing principles showed high variations in the assigned share of the safe operating space values. When taking a spatially generic approach, most of the impacts (except marine eutrophication and water consumption) were within the safe operating space for equal per capita, economic, caloric, and grandfathering sharing principles. However, all the impacts exceeded their limits considering the agri-land sharing and land use impact surpassed its budget considering the grandfathering sharing. In the spatially resolved approach, most of the impact values surpassed the available budgets. Furthermore, the failure to attain the pertinent SDG targets from a PB-LCA perspective is indicated by the exceeding of safe operating space for relevant impact categories.

Conclusions: Overall, the production of sugarcane was found to be unsustainable, requiring urgent action to promote resource improvement and contain the impacts within safe limits. The developed framework enabled the evaluation of the SDGs using PB-LCA at the product level. The target-driven impact reduction values would help in achieving the targets and prioritizing the efforts by making informed decisions for reducing impacts within safe limits.

Supplementary information: The online version contains supplementary material available at 10.1007/s11367-023-02185-7.

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通过基于行星边界的生命周期评估进行资源效率分析：以巴基斯坦甘蔗为例。

目的：为作物生产而进行的广泛农业活动导致了越来越多的环境影响，有可能超过环境安全限度。本研究的目的是分析农业食品行业的资源效率，并以巴基斯坦的甘蔗生产为例。方法：采用整体方法，确定相关影响类别和可持续发展目标，并将其与基于行星边界的生命周期评估联系起来。在应用不同的共享原则的情况下，考虑了空间通用方法和空间解析方法。结果和讨论：不同共享原则的应用表明，安全操作空间值的分配份额变化很大。在采取空间通用方法时，大多数影响（海洋富营养化和水消耗除外）都在人均、经济、热量和祖父共享原则的安全操作空间内。然而，考虑到农业土地共享，所有影响都超过了其限度，考虑到祖传共享，土地使用影响超过了预算。在空间分辨方法中，大多数影响值超过了可用预算。此外，从PB-LCA的角度来看，未能实现相关SDG目标的原因是相关影响类别的安全操作空间超出。结论：总体而言，甘蔗生产被发现是不可持续的，需要采取紧急行动促进资源改善，并将影响控制在安全范围内。所开发的框架能够在产品层面使用PB-LCA对可持续发展目标进行评估。目标驱动的影响减少值将有助于实现目标，并通过在安全范围内做出减少影响的知情决策来优先考虑工作。补充信息：在线版本包含补充材料，请访问10.1007/s11367-023-02185-7。

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来源期刊

International Journal of Life Cycle Assessment 环境科学-工程：环境

CiteScore

10.60

自引率

10.40%

发文量

100

审稿时长

8-16 weeks

期刊介绍： The International Journal of Life Cycle Assessment (Int J Life Cycle Assess) is the first journal devoted entirely to Life Cycle Assessment and closely related methods. LCA has become a recognized instrument to assess the ecological burdens and impacts throughout the consecutive and interlinked stages of a product system, from raw material acquisition or generation from natural resources, through production and use to final disposal. The Int J Life Cycle Assess is a forum for scientists developing LCA and LCM (Life Cycle Management); LCA and LCM practitioners; managers concerned with environmental aspects of products; governmental environmental agencies responsible for product quality; scientific and industrial societies involved in LCA development, and ecological institutions and bodies.